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Weather · Thailand

Ko Samui Weekend Weather

  1. TodayOctober 1630° 24°
  2. TomorrowOctober 1728° 22°
  3. SunOctober 1827° 22°
  4. MonOctober 1926° 22°
  5. TueOctober 2025° 21°
  6. WedOctober 2126° 21°
  7. ThuOctober 2226° 22°
  8. FriOctober 2327° 21°
  9. SatOctober 2425° 22°
  10. SunOctober 2525° 22°
  11. MonOctober 2624° 21°
  12. TueOctober 2726° 22°
  13. WedOctober 2825° 21°
  14. ThuOctober 2926° 21°

Weekend in Ko Samui: Saturday 28°/22° (light showers), Sunday 27°/22° (light showers).

Saturday, October 17

Ko Samui · Saturday, October 17 2026

28°22°

Light showers

High 28°, low 22°

Chance of rain
90%
9.5 mm
Wind
10 km/h
east
UV index
9
Very high
Sunrise
06:08
Sunset 18:02
Day length
11 h 54 min
Moon
First quarter
41% illuminated

Updated: · Source: Open-Meteo

Forecast for Ko Samui on Saturday, October 17, 2026: light showers, with a high of 28°C and a low of 22°C. The chance of rain is 90%, with 9.5 mm of precipitation expected in total. Wind from the east at up to 10 km/h. Sunrise is at 06:08 and sunset at 18:02; day length 11 h 54 min. 2° cooler than the previous day. Temperatures are close to the 7-day average. Rain is most likely between 09:00 and 00:00.

What to wear and what to watch out for

  • Take an umbrella or a raincoat with you.
  • Mild weather: light clothing is enough.
  • High UV index (9): sunscreen, a hat and sunglasses are recommended.

Saturday, October 17: hour by hour

  1. 00:0024°25%
  2. 01:0024°29%
  3. 02:0024°30%
  4. 03:0024°30%
  5. 04:0023°29%
  6. 05:0023°27%
  7. 06:0023°26%
  8. 07:0024°29%
  9. 08:0025°42%
  10. 09:0026°59%
  11. 10:0027°73%
  12. 11:0028°80%
  13. 12:0028°84%
  14. 13:0028°86%
  15. 14:0028°89%
  16. 15:0027°90%
  17. 16:0026°86%
  18. 17:0026°73%
  19. 18:0025°55%
  20. 19:0025°43%
  21. 20:0025°44%
  22. 21:0024°51%
  23. 22:0023°59%
  24. 23:0022°68%

Sunday, October 18

Ko Samui · Sunday, October 18 2026

27°22°

Light showers

High 27°, low 22°

Chance of rain
100%
6.8 mm
Wind
10 km/h
northeast
UV index
8
Very high
Sunrise
06:08
Sunset 18:01
Day length
11 h 54 min
Moon
First quarter
51% illuminated

Updated: · Source: Open-Meteo

Forecast for Ko Samui on Sunday, October 18, 2026: light showers, with a high of 27°C and a low of 22°C. The chance of rain is 100%, with 6.8 mm of precipitation expected in total. Wind from the northeast at up to 10 km/h. Sunrise is at 06:08 and sunset at 18:01; day length 11 h 54 min. Temperatures similar to the previous day. Temperatures are close to the 7-day average. Rain is most likely between 00:00 and 00:00.

What to wear and what to watch out for

  • Take an umbrella or a raincoat with you.
  • Mild weather: light clothing is enough.
  • High UV index (8): sunscreen, a hat and sunglasses are recommended.

Sunday, October 18: hour by hour

  1. 00:0022°77%
  2. 01:0022°84%
  3. 02:0022°85%
  4. 03:0022°83%
  5. 04:0022°80%
  6. 05:0022°77%
  7. 06:0022°73%
  8. 07:0022°71%
  9. 08:0023°72%
  10. 09:0024°76%
  11. 10:0025°80%
  12. 11:0026°86%
  13. 12:0026°93%
  14. 13:0026°98%
  15. 14:0026°100%
  16. 15:0026°100%
  17. 16:0025°96%
  18. 17:0025°84%
  19. 18:0025°68%
  20. 19:0024°55%
  21. 20:0024°49%
  22. 21:0024°48%
  23. 22:0024°49%
  24. 23:0024°54%

Weather nearby on October 17

Frequently asked questions

Will it rain in Ko Samui on Saturday, October 17, 2026?
Yes, the chance of rain is 90%, with 9.5 mm of rain expected in total.
Will it rain in Ko Samui on Sunday, October 18, 2026?
Yes, the chance of rain is 100%, with 6.8 mm of rain expected in total.

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